Yoke



W. A. GEIGER.

YOKE.

APPLICAHON FILED SEPT. 19, 1919.

Patented Mar. 29, 1921.

another embodiment of the invention.

Fig. 6 is a detail of a portion of the blank employed with the construction shown in WILLIAM A. enrcnia, OF-CHICAGQILLI'NOIfi, ASSIGNOB "Io WILLIAM H. MINER, or

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YOKE.

Specification of Letters Patent.

Patented Mar. 29 1921.

To all whom it may concern:

Be it known that I, WILLIAM A. GEIGER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Yokes, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in yokes.

The object of the invention is to provide a simple inexpensive one-piece yoke adapted for railway draft riggings and which is made from wrought steel or other non-cast metal.

In the drawings forming a part of this specification Figure 1 is a side elevation of a yoke embodying my invention. Fig. 2 is a vertical transverse section of the yoke shown in Fi 1 taken through the hood of the yoke. And ig. 3 is a plan view of the blank as it v is cut from the flat sheet and before it is bent to form the yoke shown in Fig. 1. Fig. 4 is a view corresponding toFig. 3 but illustrating a different form of blank. Fig. 5 is a view corresponding to Fig. 1 illustrating nc Fig. 5.

Referring first to the construction illustrated in Figs. 1, 2 and 3, the completed yoke is shown of well known form and comprises upper and lower arms 10 and 11, an integral rear connecting piece 12, and a hollow rectangular hood at its forward end, said hood having side walls 13-13, top wall 14 constituting an extension of the arm 10, and a bottom wall 15 constituting an extension of the arm 11. The side walls 13-13 are slotted as indicated at 16 to accommodate the usual coupler key. At the rear of the yoke, a filler plate 17 is employed to strengthen the yoke against collapse and to form a better bearing for the rear follower of the draft gear in the usual manner.

In making the improved yoke I take a sheet of wrought iron, steel or other suitable metal which is particularly effective under tension, and cut it and punch it to the form indicated in Fig. 3. That is, the blank is cut with two wings 118-113 on opposite sides of the main bar 110. The main cen tral bar 110 will, of course, correspond in length to the total length of the arms 10 and 11 and the rear connecting section 12 heretofore described. The wings 113, at the same time that they are cut to the configuration of the final side walls 13, are also punched as indicated at 116 for the coupler key slots. The wings 113 are also provided with additional lugs 18-18; at the rear end, the main bar 110 is widened as indicated at 19 so as to provide suflicient metal to permit the punching of two slots 2020 of a size. to admit the lugs 18. After the blank has been cut as indicated in Fig. 3, the wings 113 are bent on the dotted lines 2121 and the main bar 110 of the blank is bent to the U-shape shown mostclearly in Fi 1. This brings the slots 20 in line with the lugs 18 and the latter are then inserted through the slots 20 and riveted over as indicated at 118 in Fig. 2.

In the construction shown in Fig. 4, one wing 213 is formed at each end of the blank on opposite sides and the blank widened on opposite corners as indicated at 219-219 to provide for the slots 220. Riveting lu s 218 are formed on the wings as clearly s own and the wings are bent on the dotted lines 221221. It is evident that the yoke produced from this blank will be the same in general construction as that shown in Fig. 1.

In the construction illustrated in Figs. 5 and 6, instead of forming the riveting lugs integrally with the wings or side walls of the hood, they are preferably formed on one of the strap arms as indicated at 318-318 and the corresponding slots are formed in metal, the side walls of the hood and yoke arm being united by means including a riveted-over lug on the one extending through a slot in the other.

2. As an article of manufacture, a yoke having a hollow rectangular hood, upper and lower parallelly arranged arms integrally united at their rear ends, the side Walls of the hood being formed integrally with one of said arms, the other of said arms at its forward end and said side Walls having cooperating slots and rivet lugs rigidly uniting the same together, all parts of said yoke being formed from a single sheet of metaL. j j v "V In Witness that I claim the foregoing I have hereunto subscribed my name this 5th 10 1 day of Sept, 1919.

WILLIAM A. GEIGER. 

